tued 5 The movable bridge shown is called a double-leaf Bascule bridge. It has a counterweight that continuously balances the bridge deck, or "leaf," throughout the entire upward swing providing an open waterway for boat traffic. The counterweights on double-leaf bridges are usually below the bridge decks. The length of one leaf. or deck, is( 42 feet) The maximum height of an open leaf is 30 feet Calculate the measure of the angle formed by the movement of the bridge